Hair waving machine



April 23, 1940.

F. RAcr-:N '2397576 HAIRWAVING MACHINE y y Y Fil'ed July 16, 1938 2 Sheets-Sheet 1 32 6 .M u 2 31\`@. wud-L33 Y @l f/ 7 f@ E 26' 'Wh a4 April 23, 1940. F RA'CEN ,2,197,876A

HAIRv WAVING MACHINE Filed July 1e, i938 2 sheets-sheet ,2

27m/ef? for @M2M/7J @fe/7 Patentedr Apr. 23, 1940 QI'UNITED STATES PATENT oFElcE 2,197,876 HAIR WAVING MACHINE Ferdinand Racen, University City, Mo., assignor Ii to W. G. Shelton Company, St. Louis, Mo., a

f l corporation of Missouri Application July 16, 1938, Serial N0. 219,538

Claims.

The invention relates to hair waving machines and particularly to those of the type utilizing an overhead dome having outlets into which may be plugged a plurality of individual heater circuits, various groups of which may be used selectively or collectively as desired.

Y In hair waving operations it frequently is necessary to make a test wave on one or two strands of hair to determine the length of the heating period best adapted for a certain customer. Also it isa common practice to wave only a part of the customers hair, vsuch as the top or upper portions to provide curls close to the scalp, leaving other parts uncurled near the scalp.

With all such operations it is desirable to have the required heaters supported adjacent to the customers scalp and to have the remaining heatersv SupDQrted in positions where they will not interfere with the manipulation of the heaters being used. 1

Obviously it is necessary that the heaters be readilymoved from one position to the other and easily retained at any desired point, and one object of the present invention is to facilitate .25 such manipulation and retention of individual heaters.

It is another object of the invention to readily connect a desired group of heaters to the source Yof current and to visibly and plainly indicate to `70 the operator which group or groups of heaters are connected.

It is another object of the invention to facili- -tate the operators work by providing a source of light in the dome adjacent to, but not interfering with, the heaters and their circuits, or with the operators manipulation of the same.

These and other detailed objects of the in- ,venticn are obtained by the structure illustrated in the accompanying drawings, in which- Figure `1 is a side view of the upper portion of a heater machine.

Figure 2 is an enlarged detailed view of the indicators mounted on the back of the machine.

Figure 3 is a detailed section through the dome drawn on an enlarged scale.

Figure 4 is a horizontal section taken approximately on the line 4-4 of Figure 3.

Figure 5 is a wiring diagram of the dome circuits and the controls therefor.

Figure 6 is a detailed top view of one of the holders for the individual heater units.

The machine is mounted upon the usual stand (not shown) .having an `upright column I which mounts the socketed bracket 2 carrying the dome. `An arcuate slotted plate 3 is secured to bracket 2 by screws 4, and aninsulating disc 5 is supported by plate 3. The upper and lower y dome rims 6 and l, respectively, are mounted upon bracket 2 and disc 5, being held in assembled relation by bolts 8. Disc 5 mounts the outlets for the heaters, and each outlet comprises three sockets, twoior the circuit line and one iorthe ground line. These sockets are arranged in a nearly complete circle about vthe interior -of the dome and each heater unit comprises a pair of heaters 9 attached to the end of a twisted cord Ill and a plug I.I with prongs I2 arranged for insertion in the outlet sockets.

On the edge of disc .5 are mounted ycord holders each comprising an inner section I3, an outer section I4 (Figs. 3 and 6), there being an attaching screw I5 and a compression spring I6 normally received within a recess in section I4. Inner section I3 is shouldered at Il to engage the top and bottom faces of disc 5. Screw I5 is threaded into the edge of disc 5, and spring I 6, seated against the screw head, thrusts outer section i4 toward section I3. vSections I3 4and I4 have opposing recesses 20 between which the cords I0 are yieldingly gripped with sulicient pressure to retain the cord and its heater at any desired level, the two sections having cylindrical mating elements I8 rfor maintaining them against relative transverse movement while permitting relative angular movement. When the `30 sections are in functioning position, elements I9 interengage to prevent relative rotation of the sections, but when outer section I4 is pulled out against the thrust of spring I6, elements I9 are disengaged and the outer section may be rotated 90o to clear the heater cord. The thrust of spring I5 can be adjusted by rotation of screw I5 inwardly or outwardly of the hole in the rim of disc 5 and if a heater unit is to be removed, the outer holder section I4 may be grasped manually and pulled away from the inner section I3 sufciently to permit the cord to be slipped laterally out of the recesses 20.

The cord holder structure just described forms the subject matter ofa divisional application, Serial No. 302,710, filed November 3, 1939.

Two lamp sockets AZI are mounted near the center of disc 5, and lamps 22 are carried therein. A glass bowl 23 spans the opening in the rlower dome rim 1 and vis held in place by the bolt 24 extending through disc 5 and an inverted cup- -like cover 25 resting on disc 5.` The light from lamps 22 is shed downwardly through bowl 23 ydirectly onto the scalp ofthe customer, clearly lll illuminating the area in which the operator must work in applying and adjusting the heaters.

A casing 26 is mounted on the rear of bracket 2 and houses a clock timing mechanism which is not shown in detail but (see Figure 2) which includes a pointer 21 which may be turned manually about the minute indicating scale 28 to set the clock to cut off the current after a predetermined period. The casing also incloses a voltmeter with a hand 29 and voltage scale 30 for indicating the current voltage whereby the operator can better judge the length of time the heaters should operate and, accordingly, set the clock for a longer period if the voltage is low than the period required if the voltage is high. The casing also incloses a three-way switch (not shown) of any usual construction, the heater circuits closed by the respective switch contacts having individual indicating lights 3l, 32 and 33, respectively. The manual control for the switch is indicated at 34.

The functioning of the device will be more clearly understood by reference to the wiring diagram (Figure 5) from which it will be seen that closing the timing switch 35 by setting pointer 21 at any desired number of minutes only energizes the circuit for lamps 22. Turning switch key 34 to the rst position, indicated by the Test light, closes switch points 36 which energizes the circuit for indicating light 3l and the corresponding heater circuit for the center forward plug inserted in sockets 31.

Turning switch key 34 to the next position, indicated by the Front light, closes switch points 38 (without opening switch points 36) which energizes the circuit for indicating light 32 and the corresponding heater circuit for the front semi-circular battery of heaters, the plugs for which are inserted in sockets 40, the switch of the circuit for the test pair of heaters, and indicating lamp 3|, remaining closed.

Moving switch key 34 to the third position, indicated by the All light, closes switch contacts 4l (without opening switch points 36 and 38) which energizes the circuit for light 33 and the corresponding heater circuit for the rear semi-circular battery of heaters, the plugs for which are inserted in sockets 42, the switches of the circuits for the other heaters and indicating lamps 3! and 32 remaining closed.

In the wiring diagram, the voltmeter is indicated at 43 and the ground, common to all of the heaters, is indicated at 44. Condensers or capacitators 45 and 46 function to extinguish the arc between the contacts of the slow make and break connection switch for the front and rear halves of the circuit only. The single heater unit for the test curler does not build up sufcient amperage to arc and no condenser is required.

The described structure greatly facilitates the operators work, as will be gathered from the following description and operation:

All of the heater cords may be pulled upwardly through the holding devices l3-|4 to raised po sition; the customer placed beneath the machine; switch key 21 turned to the right to energize lamps 22 only; the center forward cord IU may then be pulled down and the heaters thereon applied to a test curl at any point on the customers head; switch key 21 is moved to the experimental time indicator, and switch key 34 is turned to the first position lighting the .Test lamp 3l and energizing the circuit for the two test heaters, leaving the remaining circuits open and therefore all the other heaters remain cold. eliminating danger of burns from accidental contact with these other heaters.

After completion of the test curl, or at any time when only a relatively small number of heaters are to be used, the front battery of heaters are applied to the hair and the switch key 34 turned to the second position, lighting the Front lamp, and also the Test lamp, and energizing the front battery of heaters, the circuit for the remaining heaters remaining open and the corresponding heaters remaining cold throughout the operation.

If the maximum hair curling operation is to be effected, all of the heater cords are pulled down, as required, to the customers scalp and after application of the heaters to the wound strands of hair, switch key 34 is turned to the third position, closing the circuit for lamp 33, as well as for lamps 3l and 32, and for all of the heaters.

With any of the settings of key 34, the current to the heater circuits and indicating lamps will be opened by the time switch at the expiration of the time set. Lamps 22 remain lit and illuminate the customers head and the equipment thereon at all times that the main timing switch is closed and irrespective of the setting of the three-way switch for the heater circuits.

The advantages of the described structure will be apparent to those skilled in the art. It will be understood that tubular heaters for so-called helical or corkscrew curls may be substituted for the croquignole heaters illustrated, or low voltage sachet type heaters such as are marketed with the trade name Thermique may be used instead of the heaters illustrated providing the proper transformer apparatus is embodied in the machine.

Various changes in the details of construction may be made without departing from the spirit of the invention and some of the features described may be eliminated without affecting the desirability and novelty of the other features. The exclusive use of all modifications of the invention coming within the scope of the appended claims is contemplated.

I claim:

l. In a hair waving heater dome, a plate-like disc, a lamp depending therefrom, upwardly facing sockets therein for heater cord plugs, an annular rim structure concealing said sockets and extending downwardly and inwardly from the periphery of said disc and surrounding said lamp and having an opening below said lamp, and a glass closure for said opening.

2. In a hair waving heater dome, a plate-like disc, lamp and heater sockets carried thereby, an annular rim seated against the lower face of said disc and extending downwardly and inwardly from the periphery thereof and having a central opening below said lamp, means securing said rim in assembled relation with said disc, a removable glass closure for said opening seated on the portion of said rim about said opening, and readily detachable means holding said closure in assembled relation with said rim and disc independently of said first-mentioned means.

3. In a hair waving machine, a panel provided with circuits therein for different groups of heaters, one of said groups comprising a restricted number of heaters for test curl purposes, another of said groups comprising a series of heaters arranged for waving the forward p01'- tion of a customers hair and yanother of said group comprising a series of heaters arranged for waving the rear portion of a customers hair, and a selective switch structure for connecting the first group to a source of current supply or for connecting the irst and second groups to such supply or for connecting all three groups to said supply.

4. A hair waving machine as described in claim 3 which also includes means energized by said switch to visibly indicate the group or groups of heaters being energized.

5. In a hair waving heater dome, a plate-like disc, upwardly opening heater sockets carried thereby, separate annular members applied to upper and lower faces of said disc respectively,

bolts extending through said disc and both of said elements and drawing said elements towards' said disc and Leach other to maintain their assembly, a lamp mounted on the lower central part of said disc, a glass closure extending 'across the space between the sides of the lower of said members and seated on a downwardly projecting portion thereof and inclosing saidy lamp, and a bolt extending through said closure and said disc and supported from the top face of the latter for dra-Wing said closure and the inner portion of said lower annular member and said disc towards each other to maintain their assembly.

y FERDINAND RACEN. 

